Re: Please provide examples of rows from - Mailing list pgsql-docs

From Tom Lane
Subject Re: Please provide examples of rows from
Date
Msg-id 835988.1600613834@sss.pgh.pa.us
Whole thread Raw
In response to Re: Please provide examples of rows from  (Bruce Momjian <bruce@momjian.us>)
Responses Re: Please provide examples of rows from  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-docs
Bruce Momjian <bruce@momjian.us> writes:
> but doing this to illustrate ROWS FROM is going to be complex.

You're right that the only suitable core function is going to be
json[b]_to_recordset, but I don't see why you can't extend the
existing example for that.  Something like

# select * from rows from (json_to_recordset('[{"a":1,"b":"foo"},{"a":"2","c":"bar"}]') as (x int, y text),
generate_series(1,3))as x(a,b,s) ; 
 a |  b  | s
---+-----+---
 1 | foo | 1
 2 |     | 2
   |     | 3
(3 rows)

would illustrate all the principles.

            regards, tom lane



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